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nodeschool.io

https://nodeschool.io· First analyzed 18 May 2026· Updated 18 May 2026
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nodeschool.io
Desktop screenshot of nodeschool.io
Mobile screenshot of nodeschool.io
Mobile

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Hosting Provider

Cloudflare
cloudflare.com

IP Address

172.67.167.227

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

brad.ns.cloudflare.com.kristin.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
646 ms10%
Speed Index
840 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
126 KB
14 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Platform
GitHub Pages
CDN
Cloudflare

Technology Stack

8 Technologies Detected

Analytics

2
Google Analytics
Segment

Frameworks

1
React

Libraries

1
jQueryv2.0.3

Other

1
Three.js

CSS Frameworks

1
Tailwind CSS

Fonts

1
Google Fonts

CDN

1
Cloudflare

SEO Analysis

D53/100
16
8
1
Meta Tags4/15
Content11/12
Headings5/8
Technical12/21
E-E-A-T0/7
Images4/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
N
nodeschool.ionodeschool.io

NodeSchool

No description available for this page.

Title Length10 chars

Recommended: 50-60 chars (~59px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (1)

  • • Missing meta description — important for click-through rates in SERPs

9 issues found

Upgrade to view details

Local SEO

Local Search Readiness

7/100
Poor
2 14 2

This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

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AI & LLM Readiness

D40/100
Bot Access
20/25
Machine Read.
12/25
Schema Data
0/25
Citation
8/25

AI Bot Access

14/14 accessible
AI Search
OAI-SearchBot
PerplexityBot
Claude-SearchBot
Gemini-Deep-Research
DuckAssistBot
Training
GPTBot
ClaudeBot
Google-Extended
Meta-ExternalAgent
Bytespiderinfo
Amazonbot
Applebot-Extended
CCBotinfo
Fetch
ChatGPT-User

Machine Readability

llms.txt
llms-full.txt
Semantic HTML
Heading Hierarchy
code blocksheader/footer
Text ratio:20%
Words:967
Token eff.:Optimal
Sections/1K:3.1
Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary32w
Descriptive Headingsavg 1.7w
Canonical URL
Open Graph0/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (9)
AI readiness recommendation preview...
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Accessibility

WCAG 2.1 Compliance

Evaluates how accessible your website is for users with disabilities, based on WCAG 2.1 guidelines. Checks images, forms, keyboard navigation, ARIA roles, and color contrast.
A
81/100
11
Passed
2
Critical
0
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
15/20
Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
Forms & Inputs
15/15
Verifies form fields have labels, error messages are clear, and inputs are properly associated.
Color & Contrast
15/15
Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.
Keyboard & Focus
13/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
3/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

Carbon Footprint

SWDM v4 · Eco-Score

Carbon emissions estimated using the Sustainable Web Design Model v4 (SWDM v4). Factors in data center, network, and device energy across new and returning visitors. Grade thresholds based on HTTP Archive percentiles.
68/100
A+
13 mg
CO₂e / view
126.0 KB
Page Weight
95%
Cleaner Than
New Visitor
15 mg
vs
Returning (cached)
7 mg
Annual (10K/mo)
1.5 kg
Emission Segments
Data Center
<0.001 g
Network
4 mg
Device
8 mg
Resource Breakdown
JavaScript
40.7 KB
Images
2.5 KB
CSS
74.3 KB
Fonts
1.1 KB
HTML
7.4 KB
Green Hosting Verified
Cloudflare
GWF Verified
3 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
B

Security Score

71%Good
Static / Informational

HTTPS

WAF

50d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Google Trust Services

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-256

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

09.04.2026

Valid Until

08.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

nodeschool.io*.nodeschool.io

SHA-256 Fingerprint

D4:8D:CF:17:99:BE:DA:13:3C:D8:EA:16:D9:06:88:CB:48:F5:5C:24...

Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

access-control-allow-origin
*
alt-svc
h3=":443"; ma=86400
cache-control
🟡 600s(max-age=600)
cf-cache-status
DYNAMIC
cf-ray
9fde536a1c08171b-BOS
content-encoding
zstd
Good Warning Issue

Email Infrastructure

Mailgun

Score

45

SPF
DKIM
DMARC

MX Records (2)

mxb.mailgun.org
mxa.mailgun.org

Domain Information

nodeschool.io

Domain Age
12y 8m

Created

11.09.2013

Expires

11.09.2027

Last Updated

14.01.2026

Registrar

Porkbun LLC

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

Mobile Compatibility

Viewport & Responsive Test

Tests how well your website works on mobile devices. Checks viewport configuration, responsive layout, touch targets, font readability, and simulates rendering across different screen sizes.
D
59/100
Mobile Friendly1 breakpoint
Viewport Meta
The viewport meta tag tells mobile browsers how to scale the page. Without it, mobile devices render at desktop width.
Responsive Design
Uses CSS media queries or flexible layouts to adapt content to different screen sizes automatically.
Touch Icons
Apple touch icons and favicons displayed when users add the site to their home screen on mobile devices.
Readable Font Size
Base font size should be at least 16px on mobile to ensure text is readable without zooming.
Relative Units
Using em, rem, %, or vw instead of fixed px values allows content to scale properly across screen sizes.
No H-Scroll Risk
No elements wider than the viewport that would cause horizontal scrolling on mobile devices.
Tap Targets OK
Interactive elements (buttons, links) are at least 48x48px with enough spacing to prevent accidental taps.
No Fixed Widths
No elements with fixed pixel widths that could overflow on smaller screens and break the layout.
Viewport
width=device-width, initial-scale=1.0
2 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Source Sans Pro

WCAG AAA
75/100
Readability
/30
22/30

16px · LH 1.75

Hierarchy
/20
17/20

5x ratio

WCAG
/25
21/25

9.91:1 min contrast

Performance
/25
15/25

1 font · 1 req

Heading Font

Source Sans Pro

Sans80px

Body Font

Source Sans Pro

Sans16px

Contrast Ratio

9.91:1

WCAG AAA (≥7:1)

Reading Comfort

~41 CPL

Narrow lines
80px
h1
48px
h3
16px
h4
16px
p

✅ Excellent readability: 16px body text is ideal for all devices.

⚠️ Hard to read: Flesch score 46/100. Simplify sentences for wider reach.

✅ WCAG AAA contrast: All text meets 7:1 ratio (min 9.9:1).

⚠️ Minor heading issue: 1 level skip(s) detected. Maintain sequential order for screen readers.

✅ Strong hierarchy: Headlines are 5.0x larger than body text.

✅ Lean font stack: 1 font families keeps load times fast.

GGoogle FontsFlesch 46

Color Palette

6 unique colors
Light
#f7f7f7
Background· 61.9%
#ffde15
Primary· 22.8%
#f7efba
Accent· 6.1%
#9f9561
Secondary· 4%
#d1c781
Secondary· 2.7%
#f9df36
Primary· 2.5%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

1
Google AnalyticsFree

User behavior and product analytics

1

Categories

1

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

9 Resources

6
Scripts
3
Styles
0
Async
1
Defer

Top Script Sources

local(3)google-analytics.com(1)ajax.googleapis.com(1)static.cloudflareinsights.com(1)

Website Identity

nodeschool.io

12 years old
Location detected: 🇨🇦 Canadavia ip
Porkbun LLC📧 Mailgunen

Social Profiles

X (Twitter)GitHub

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Last analyzed: 18 May 2026 at 22:34

Historical Analysis & Change Tracking